# \[Request\] Modify plID/Album ID (iTunes) for m4a songs

**URL:** https://community.mp3tag.de/t/request-modify-plid-album-id-itunes-for-m4a-songs/52610
**Category:** General Discussion
**Created:** [March 30, 2021, 7:50pm UTC](https://community.mp3tag.de/t/request-modify-plid-album-id-itunes-for-m4a-songs/52610 "2021-03-30T19:50:04Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![Crissov](https://community.mp3tag.de/user_avatar/community.mp3tag.de/crissov/32/6619_2.png) [@Crissov](https://community.mp3tag.de/u/Crissov)
#### Post date: [March 31, 2021, 6:11am UTC](https://community.mp3tag.de/t/request-modify-plid-album-id-itunes-for-m4a-songs/52610/4 "2021-03-31T06:11:32Z")

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FWIW, ExifTool documents the `plID` box as _playlist ID_. A classic album is just a special kind of playlist apparently.

> [@MP4-Felder (Atom/Box) in anderer Software](https://community.mp3tag.de/t/mp4-felder-atoms/48614/3):
>
> ExifTool Die [Doku für ExifTool](https://exiftool.org/TagNames/QuickTime.html#ItemList) ist äußerst umfassend. ItemList PODCASTID (Episode Global Unique ID) wird in der Mp3tag-Doku klein egid, bei ExifTool aber groß egID geschrieben. Daneben kennt ExifTool weitere MP4-IDs: atID (Album Title ID), plID (Playlist ID), prID (Product ID), akID (Apple Store Account Type) und sfID (Apple Store Country). Für CONTENTGROUP gibt es neben ©grp auch das Atom grup. Für TITLE gibt es neben ©nam (Name) auch das 3GP-Atom titl. Für ALBUM gibt es neben ©alb a…

This ID can be used with the Apple Music API:

> **[Get a Catalog Playlist | Apple Developer Documentation](https://developer.apple.com/documentation/applemusicapi/get_a_catalog_playlist)**
>
> Fetch a playlist by using its identifier.

PS: This that is probably a duplicate of [Modify iTunes Album ID](https://community.mp3tag.de/t/modify-itunes-album-id/43189)

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